UIC 544-2

Railway Braking Force Estimation Methods

UIC 544-2 provides standardized calculation and estimation methods for determining braking force in railway rolling stock across different brake system types and operational scenarios. This technical standard defines mathematical models for translating brake system pressure, line force, and mechanical leverage into actual stopping power, accounting for variables such as wheel slip, temperature effects, and load conditions. The standard enables consistent performance prediction and certification across diverse European rail systems. Accreditation for this calculation methodology ensures reproducible, safety-critical engineering assessments used in rail fleet design and operational planning.

What it measures

  • Brake force calculation from system pressure and geometry
  • Adhesion coefficient effects on available braking force
  • Load-dependent braking force variations
  • Dynamic brake force response characteristics
  • Braking force distribution optimization
🇧🇪 NBN EN 14531-1 🇩🇪 DIN EN 14531-1 🇬🇧 BS EN 14531-1 🇫🇷 NF EN 14531-1 🇮🇹 UNI EN 14531-1 🇪🇸 UNE EN 14531-1 🇳🇱 NEN EN 14531-1
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21 Countries

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DAkkS D-ML-13087-01-00 Schüttorf, DE
Ethanol Creatinin Digitoxin Digoxin HbA1c + 3 more
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DAkkS D-ML-13087-02-00 Leer, DE
(ein- oder mehrgängige tration von Harnsäure tration von Harnstoff Digitoxin Digoxin + 3 more
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DAkkS D-ML-17171-01-01 Baden-Baden, DE
Ethanol Digitoxin Digoxin HbA1c Cortisol + 3 more
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DAkkS D-ML-20249-01-00 Braunschweig, DE
(ein- oder mehrgängige Ethanol Absolutdruck tration von Harnsäure tration von Harnstoff + 3 more
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DAkkS D-ML-13183-01-00 Bremen, DE
Ethanol Digitoxin Digoxin HbA1c Cortisol + 3 more
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DAkkS D-ML-13107-01-00 Geesthacht, DE
Aceton Ethanol Absolutdruck tration von Harnsäure tration von Harnstoff + 3 more
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DAkkS D-ML-13107-01-01 Geesthacht, DE
Aceton Ethanol Digitoxin Digoxin HbA1c + 3 more
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DAkkS D-ML-13109-01-01 Hannover, DE
Digitoxin Digoxin HbA1c Cortisol Testosteron + 3 more
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DAkkS D-ML-13319-02-01 Neuruppin, DE
Creatinin Digitoxin HbA1c Aldosteron Cortisol + 3 more
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DAkkS D-ML-13132-01-00 Flintbek, DE
Ethanol Absolutdruck tration von Harnsäure tration von Harnstoff Creatinin + 3 more
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DAkkS D-ML-13194-01-01 Recklinghausen, DE
Ethanol Digitoxin Digoxin HbA1c Cortisol + 3 more
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LAEMMEGROUP

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ACCREDIA 00179 Moncalieri, IT
ISO 18787 DIN EN ISO 6865 ISO 4831 ISO 4832 ISO 15214 + 3 more
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ACCREDIA 00322 Fano, IT
ISO 4832 ISO 21527-1 ISO 21527-2 DIN EN ISO 4833-1 DIN EN ISO 6888-2 + 3 more
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ACCREDIA 01234 Rosignano Marittimo, IT
DIN EN ISO 17637 DIN EN ISO 17638 DIN EN ISO 17636-1 DIN EN ISO 16809 DIN EN ISO 17640 + 3 more
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LANARTEX SRL

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ACCREDIA 00498 Montemurlo, IT
ISO 3795 DIN EN 1021-1 DIN EN 1021-2 DIN EN ISO 6941 DIN EN ISO 13934-1 + 3 more
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COFRAC 1-1545 Velizy-Villacoublay, FR
IEC 62387 ISO 21909 NF EN 62387
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ACCREDIA 00086 Prato, IT
DIN EN ISO 4589-2 ISO 5658-2 ISO 5660-1 DIN EN ISO 5659-2 DIN EN ISO 9239-1 + 3 more
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LARA

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ACCREDIA 01187 Formello, IT
DIN EN 13126-19 DIN EN ISO 10304-1 DIN EN ISO 16911-1 DIN EN 13284-1 DIN EN 14790 + 3 more
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COFRAC 1-1669 Cherbourg-Octeville Cedex, FR
DIN EN 27888 DIN EN ISO 10523 DIN EN ISO 16703 ISO 13320 DIN EN ISO 10703 + 3 more
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LASI srl

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ACCREDIA 00836 Pieve al Toppo, Civitella in Val di Chiana, IT
DIN EN 27888 DIN EN 12880 DIN EN ISO 11885 DIN EN 13657 DIN EN ISO 10523 + 3 more
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ACCREDIA 02144 Capriolo, IT
DIN EN 13126-19 DIN EN 13657 DIN EN ISO 17294-2 DIN EN 1484 DIN EN 14039 + 3 more
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ENAC LE2494 Paterna, ES
ISO/IEC 15408 ISO/IEC 18045 UNE 320001
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ACCREDIA 01268 Campi Bisenzio, IT
Salt spray / neutral salt fog test (ISO DIN EN 1337-6 DIN EN ISO 11885 DIN EN ISO 17075-1 DIN EN ISO 17234-1 + 3 more
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COFRAC 1-2193 Bourg-En-Bresse Cedex 9, FR
ISO 4832 ISO 15214 ISO 21527-1 ISO 21527-2 DIN ISO 16649-2 + 3 more
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DAkkS D-K-18673-01-01 Dresden, DE
Railway braking — urban guided transport Railway braking — urban guided transport Railway vehicle body structural requirem - Gleichspannung - Gleichstromstärke + 3 more
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Industries

Railway rolling stock engineering and design Brake system manufacturers and integrators Railway fleet operators Rail vehicle certification authorities Transport safety and compliance consulting

Related Standards

  • UIC 544-1 Railway brakes — Braking performance
  • UIC 541-01 Railway brakes — Brake pads — Part 1: Friction material specification
  • EN 14531-1 Railway applications — Safety requirements for the design of rolling stock

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